# How Much Time Taken by the Boat? If

A boat can travel with a speed of 13 km/hr is still water. If the speed of stream is 4 km/hr in the same direction, time taken by boat to go 63 km in opposite direction is:

- 60/17 hrs
- 4 hrs
- 7 hrs
- 9 hrs

**Answer : (3) 7 hrs
Explanation:-
**The speed of the boat = 13 km/hr

The speed of the river = 4 km/hr

Then, the speed of the boat in opposite direction = 13 – 4

= 9 km/hr

The distance covered by boat = 63 km/hr

Then, the time taken by the boat to covered the distance 63 km = 63/9

= 7 hrs

Hence, the answer is (3) 7 hrs.